/**
 * QUnit - A JavaScript Unit Testing Framework
 *
 * http://docs.jquery.com/QUnit
 *
 * Copyright (c) 2009 John Resig, Jorn Zaefferer
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * @provides fb.tests.qunit
 */

(function(window) {

var QUnit = {

  // Initialize the configuration options
  init: function() {
    config = {
      stats: { all: 0, bad: 0 },
      moduleStats: { all: 0, bad: 0 },
      started: +new Date,
      blocking: false,
      autorun: false,
      assertions: [],
      filters: [],
      queue: []
    };

    var tests = id("qunit-tests"),
      banner = id("qunit-banner"),
      result = id("qunit-testresult");

    if ( tests ) {
      tests.innerHTML = "";
    }

    if ( banner ) {
      banner.className = "";
    }

    if ( result ) {
      result.parentNode.removeChild( result );
    }
  },

  // call on start of module test to prepend name to all tests
  module: function(name, testEnvironment) {
    config.currentModule = name;

    synchronize(function() {
      if ( config.currentModule ) {
        QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
      }

      config.currentModule = name;
      config.moduleTestEnvironment = testEnvironment;
      config.moduleStats = { all: 0, bad: 0 };

      QUnit.moduleStart( name, testEnvironment );
    });
  },

  asyncTest: function(testName, expected, callback) {
    if ( arguments.length === 2 ) {
      callback = expected;
      expected = 0;
    }

    QUnit.test(testName, expected, callback, true);
  },

  test: function(testName, expected, callback, async) {
    var name = testName, testEnvironment, testEnvironmentArg;

    if ( arguments.length === 2 ) {
      callback = expected;
      expected = null;
    }
    // is 2nd argument a testEnvironment?
    if ( expected && typeof expected === 'object') {
      testEnvironmentArg =  expected;
      expected = null;
    }

    if ( config.currentModule ) {
      name = config.currentModule + " module: " + name;
    }

    if ( !validTest(name) ) {
      return;
    }

    synchronize(function() {
      QUnit.testStart( testName );

      testEnvironment = extend({
        setup: function() {},
        teardown: function() {}
      }, config.moduleTestEnvironment);
      if (testEnvironmentArg) {
        extend(testEnvironment,testEnvironmentArg);
      }

      // allow utility functions to access the current test environment
      QUnit.current_testEnvironment = testEnvironment;

      config.assertions = [];
      config.expected = expected;

      try {
        if ( !config.pollution ) {
          saveGlobal();
        }

        testEnvironment.setup.call(testEnvironment);
      } catch(e) {
        QUnit.ok( false, "Setup failed on " + name + ": " + e.message );
      }

      if ( async ) {
        QUnit.stop();
      }

      try {
        callback.call(testEnvironment);
      } catch(e) {
        fail("Test " + name + " died, exception and test follows", e, callback);
        QUnit.ok( false, "Died on test #" + (config.assertions.length + 1) + ": " + e.message );
        // else next test will carry the responsibility
        saveGlobal();

        // Restart the tests if they're blocking
        if ( config.blocking ) {
          start();
        }
      }
    });

    synchronize(function() {
      try {
        checkPollution();
        testEnvironment.teardown.call(testEnvironment);
      } catch(e) {
        QUnit.ok( false, "Teardown failed on " + name + ": " + e.message );
      }

      try {
        QUnit.reset();
      } catch(e) {
        fail("reset() failed, following Test " + name + ", exception and reset fn follows", e, reset);
      }

      if ( config.expected && config.expected != config.assertions.length ) {
        QUnit.ok( false, "Expected " + config.expected + " assertions, but " + config.assertions.length + " were run" );
      }

      var good = 0, bad = 0,
        tests = id("qunit-tests");

      config.stats.all += config.assertions.length;
      config.moduleStats.all += config.assertions.length;

      if ( tests ) {
        var ol  = document.createElement("ol");
        ol.style.display = "none";

        for ( var i = 0; i < config.assertions.length; i++ ) {
          var assertion = config.assertions[i];

          var li = document.createElement("li");
          li.className = assertion.result ? "pass" : "fail";
          li.appendChild(document.createTextNode(assertion.message || "(no message)"));
          ol.appendChild( li );

          if ( assertion.result ) {
            good++;
          } else {
            bad++;
            config.stats.bad++;
            config.moduleStats.bad++;
          }
        }

        var b = document.createElement("strong");
        b.innerHTML = name + " <b style='color:black;'>(<b class='fail'>" + bad + "</b>, <b class='pass'>" + good + "</b>, " + config.assertions.length + ")</b>";

        addEvent(b, "click", function() {
          var next = b.nextSibling, display = next.style.display;
          next.style.display = display === "none" ? "block" : "none";
        });

        addEvent(b, "dblclick", function(e) {
          var target = e && e.target ? e.target : window.event.srcElement;
          if ( target.nodeName.toLowerCase() === "strong" ) {
            var text = "", node = target.firstChild;

            while ( node.nodeType === 3 ) {
              text += node.nodeValue;
              node = node.nextSibling;
            }

            text = text.replace(/(^\s*|\s*$)/g, "");

            if ( window.location ) {
              window.location.href = window.location.href.match(/^(.+?)(\?.*)?$/)[1] + "?" + encodeURIComponent(text);
            }
          }
        });

        var li = document.createElement("li");
        li.className = bad ? "fail" : "pass";
        li.appendChild( b );
        li.appendChild( ol );
        tests.appendChild( li );

        if ( bad ) {
          var toolbar = id("qunit-testrunner-toolbar");
          if ( toolbar ) {
            toolbar.style.display = "block";
            id("qunit-filter-pass").disabled = null;
            id("qunit-filter-missing").disabled = null;
          }
        }

      } else {
        for ( var i = 0; i < config.assertions.length; i++ ) {
          if ( !config.assertions[i].result ) {
            bad++;
            config.stats.bad++;
            config.moduleStats.bad++;
          }
        }
      }

      QUnit.testDone( testName, bad, config.assertions.length );

      if ( !window.setTimeout && !config.queue.length ) {
        done();
      }
    });

    if ( window.setTimeout && !config.doneTimer ) {
      config.doneTimer = window.setTimeout(function(){
        if ( !config.queue.length ) {
          done();
        } else {
          synchronize( done );
        }
      }, 13);
    }
  },

  /**
   * Specify the number of expected assertions to gurantee that failed test (no assertions are run at all) don't slip through.
   */
  expect: function(asserts) {
    config.expected = asserts;
  },

  /**
   * Asserts true.
   * @example ok( "asdfasdf".length > 5, "There must be at least 5 chars" );
   */
  ok: function(a, msg) {
    QUnit.log(a, msg);

    config.assertions.push({
      result: !!a,
      message: msg
    });
  },

  /**
   * Checks that the first two arguments are equal, with an optional message.
   * Prints out both actual and expected values.
   *
   * Prefered to ok( actual == expected, message )
   *
   * @example equal( format("Received {0} bytes.", 2), "Received 2 bytes." );
   *
   * @param Object actual
   * @param Object expected
   * @param String message (optional)
   */
  equal: function(actual, expected, message) {
    push(expected == actual, actual, expected, message);
  },

  notEqual: function(actual, expected, message) {
    push(expected != actual, actual, expected, message);
  },

  deepEqual: function(a, b, message) {
    push(QUnit.equiv(a, b), a, b, message);
  },

  notDeepEqual: function(a, b, message) {
    push(!QUnit.equiv(a, b), a, b, message);
  },

  strictEqual: function(actual, expected, message) {
    push(expected === actual, actual, expected, message);
  },

  notStrictEqual: function(actual, expected, message) {
    push(expected !== actual, actual, expected, message);
  },

  start: function() {
    // A slight delay, to avoid any current callbacks
    if ( window.setTimeout ) {
      window.setTimeout(function() {
        if ( config.timeout ) {
          clearTimeout(config.timeout);
        }

        config.blocking = false;
        process();
      }, 13);
    } else {
      config.blocking = false;
      process();
    }
  },

  stop: function(timeout) {
    config.blocking = true;

    if ( timeout && window.setTimeout ) {
      config.timeout = window.setTimeout(function() {
        QUnit.ok( false, "Test timed out" );
        QUnit.start();
      }, timeout);
    }
  },

  /**
   * Resets the test setup. Useful for tests that modify the DOM.
   */
  reset: function() {
    if ( window.jQuery ) {
      jQuery("#main").html( config.fixture );
      jQuery.event.global = {};
      jQuery.ajaxSettings = extend({}, config.ajaxSettings);
    }
  },

  /**
   * Trigger an event on an element.
   *
   * @example triggerEvent( document.body, "click" );
   *
   * @param DOMElement elem
   * @param String type
   */
  triggerEvent: function( elem, type, event ) {
    if ( document.createEvent ) {
      event = document.createEvent("MouseEvents");
      event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
        0, 0, 0, 0, 0, false, false, false, false, 0, null);
      elem.dispatchEvent( event );

    } else if ( elem.fireEvent ) {
      elem.fireEvent("on"+type);
    }
  },

  // Safe object type checking
  is: function( type, obj ) {
    return Object.prototype.toString.call( obj ) === "[object "+ type +"]";
  },

  // Logging callbacks
  done: function(failures, total) {},
  log: function(result, message) {},
  testStart: function(name) {},
  testDone: function(name, failures, total) {},
  moduleStart: function(name, testEnvironment) {},
  moduleDone: function(name, failures, total) {}
};

// Backwards compatibility, deprecated
QUnit.equals = QUnit.equal;
QUnit.same = QUnit.deepEqual;

// Maintain internal state
var config = {
  // The queue of tests to run
  queue: [],

  // block until document ready
  blocking: true
};

// Load paramaters
(function() {
  var location = window.location || { search: "", protocol: "file:" },
    GETParams = location.search.slice(1).split('&');

  for ( var i = 0; i < GETParams.length; i++ ) {
    GETParams[i] = decodeURIComponent( GETParams[i] );
    if ( GETParams[i] === "noglobals" ) {
      GETParams.splice( i, 1 );
      i--;
      config.noglobals = true;
    } else if ( GETParams[i].search('=') > -1 ) {
      GETParams.splice( i, 1 );
      i--;
    }
  }

  // restrict modules/tests by get parameters
  config.filters = GETParams;

  // Figure out if we're running the tests from a server or not
  QUnit.isLocal = !!(location.protocol === 'file:');
})();

// Expose the API as global variables, unless an 'exports'
// object exists, in that case we assume we're in CommonJS
if ( typeof exports === "undefined" || typeof require === "undefined" ) {
  extend(window, QUnit);
  window.QUnit = QUnit;
} else {
  extend(exports, QUnit);
  exports.QUnit = QUnit;
}

if ( typeof document === "undefined" || document.readyState === "complete" ) {
  config.autorun = true;
}

addEvent(window, "load", function() {
  // Initialize the config, saving the execution queue
  var oldconfig = extend({}, config);
  QUnit.init();
  extend(config, oldconfig);

  config.blocking = false;

  var userAgent = id("qunit-userAgent");
  if ( userAgent ) {
    userAgent.innerHTML = navigator.userAgent;
  }

  var toolbar = id("qunit-testrunner-toolbar");
  if ( toolbar ) {
    toolbar.style.display = "none";

    var filter = document.createElement("input");
    filter.type = "checkbox";
    filter.id = "qunit-filter-pass";
    filter.disabled = true;
    addEvent( filter, "click", function() {
      var li = document.getElementsByTagName("li");
      for ( var i = 0; i < li.length; i++ ) {
        if ( li[i].className.indexOf("pass") > -1 ) {
          li[i].style.display = filter.checked ? "none" : "";
        }
      }
    });
    toolbar.appendChild( filter );

    var label = document.createElement("label");
    label.setAttribute("for", "qunit-filter-pass");
    label.innerHTML = "Hide passed tests";
    toolbar.appendChild( label );

    var missing = document.createElement("input");
    missing.type = "checkbox";
    missing.id = "qunit-filter-missing";
    missing.disabled = true;
    addEvent( missing, "click", function() {
      var li = document.getElementsByTagName("li");
      for ( var i = 0; i < li.length; i++ ) {
        if ( li[i].className.indexOf("fail") > -1 && li[i].innerHTML.indexOf('missing test - untested code is broken code') > - 1 ) {
          li[i].parentNode.parentNode.style.display = missing.checked ? "none" : "block";
        }
      }
    });
    toolbar.appendChild( missing );

    label = document.createElement("label");
    label.setAttribute("for", "qunit-filter-missing");
    label.innerHTML = "Hide missing tests (untested code is broken code)";
    toolbar.appendChild( label );
  }

  var main = id('main');
  if ( main ) {
    config.fixture = main.innerHTML;
  }

  if ( window.jQuery ) {
    config.ajaxSettings = window.jQuery.ajaxSettings;
  }

  QUnit.start();
});

function done() {
  if ( config.doneTimer && window.clearTimeout ) {
    window.clearTimeout( config.doneTimer );
    config.doneTimer = null;
  }

  if ( config.queue.length ) {
    config.doneTimer = window.setTimeout(function(){
      if ( !config.queue.length ) {
        done();
      } else {
        synchronize( done );
      }
    }, 13);

    return;
  }

  config.autorun = true;

  // Log the last module results
  if ( config.currentModule ) {
    QUnit.moduleDone( config.currentModule, config.moduleStats.bad, config.moduleStats.all );
  }

  var banner = id("qunit-banner"),
    tests = id("qunit-tests"),
    html = ['Tests completed in ',
    +new Date - config.started, ' milliseconds.<br/>',
    '<span class="passed">', config.stats.all - config.stats.bad, '</span> tests of <span class="total">', config.stats.all, '</span> passed, <span class="failed">', config.stats.bad,'</span> failed.'].join('');

  if ( banner ) {
    banner.className = (config.stats.bad ? "qunit-fail" : "qunit-pass");
  }

  if ( tests ) {
    var result = id("qunit-testresult");

    if ( !result ) {
      result = document.createElement("p");
      result.id = "qunit-testresult";
      result.className = "result";
      tests.parentNode.insertBefore( result, tests.nextSibling );
    }

    result.innerHTML = html;
  }

  QUnit.done( config.stats.bad, config.stats.all );
}

function validTest( name ) {
  var i = config.filters.length,
    run = false;

  if ( !i ) {
    return true;
  }

  while ( i-- ) {
    var filter = config.filters[i],
      not = filter.charAt(0) == '!';

    if ( not ) {
      filter = filter.slice(1);
    }

    if ( name.indexOf(filter) !== -1 ) {
      return !not;
    }

    if ( not ) {
      run = true;
    }
  }

  return run;
}

function push(result, actual, expected, message) {
  message = message || (result ? "okay" : "failed");
  QUnit.ok( result, result ? message + ": " + expected : message + ", expected: " + QUnit.jsDump.parse(expected) + " result: " + QUnit.jsDump.parse(actual) );
}

function synchronize( callback ) {
  config.queue.push( callback );

  if ( config.autorun && !config.blocking ) {
    process();
  }
}

function process() {
  while ( config.queue.length && !config.blocking ) {
    config.queue.shift()();
  }
}

function saveGlobal() {
  config.pollution = [];

  if ( config.noglobals ) {
    for ( var key in window ) {
      config.pollution.push( key );
    }
  }
}

function checkPollution( name ) {
  var old = config.pollution;
  saveGlobal();

  var newGlobals = diff( old, config.pollution );
  if ( newGlobals.length > 0 ) {
    ok( false, "Introduced global variable(s): " + newGlobals.join(", ") );
    config.expected++;
  }

  var deletedGlobals = diff( config.pollution, old );
  if ( deletedGlobals.length > 0 ) {
    ok( false, "Deleted global variable(s): " + deletedGlobals.join(", ") );
    config.expected++;
  }
}

// returns a new Array with the elements that are in a but not in b
function diff( a, b ) {
  var result = a.slice();
  for ( var i = 0; i < result.length; i++ ) {
    for ( var j = 0; j < b.length; j++ ) {
      if ( result[i] === b[j] ) {
        result.splice(i, 1);
        i--;
        break;
      }
    }
  }
  return result;
}

function fail(message, exception, callback) {
  if ( typeof console !== "undefined" && console.error && console.warn ) {
    console.error(message);
    console.error(exception);
    console.warn(callback.toString());

  } else if ( window.opera && opera.postError ) {
    opera.postError(message, exception, callback.toString);
  }
}

function extend(a, b) {
  for ( var prop in b ) {
    a[prop] = b[prop];
  }

  return a;
}

function addEvent(elem, type, fn) {
  if ( elem.addEventListener ) {
    elem.addEventListener( type, fn, false );
  } else if ( elem.attachEvent ) {
    elem.attachEvent( "on" + type, fn );
  } else {
    fn();
  }
}

function id(name) {
  return !!(typeof document !== "undefined" && document && document.getElementById) &&
    document.getElementById( name );
}

// Test for equality any JavaScript type.
// Discussions and reference: http://philrathe.com/articles/equiv
// Test suites: http://philrathe.com/tests/equiv
// Author: Philippe Rathe <prathe@gmail.com>
QUnit.equiv = function () {

    var innerEquiv; // the real equiv function
    var callers = []; // stack to decide between skip/abort functions


    // Determine what is o.
    function hoozit(o) {
        if (QUnit.is("String", o)) {
            return "string";

        } else if (QUnit.is("Boolean", o)) {
            return "boolean";

        } else if (QUnit.is("Number", o)) {

            if (isNaN(o)) {
                return "nan";
            } else {
                return "number";
            }

        } else if (typeof o === "undefined") {
            return "undefined";

        // consider: typeof null === object
        } else if (o === null) {
            return "null";

        // consider: typeof [] === object
        } else if (QUnit.is( "Array", o)) {
            return "array";

        // consider: typeof new Date() === object
        } else if (QUnit.is( "Date", o)) {
            return "date";

        // consider: /./ instanceof Object;
        //           /./ instanceof RegExp;
        //          typeof /./ === "function"; // => false in IE and Opera,
        //                                          true in FF and Safari
        } else if (QUnit.is( "RegExp", o)) {
            return "regexp";

        } else if (typeof o === "object") {
            return "object";

        } else if (QUnit.is( "Function", o)) {
            return "function";
        } else {
            return undefined;
        }
    }

    // Call the o related callback with the given arguments.
    function bindCallbacks(o, callbacks, args) {
        var prop = hoozit(o);
        if (prop) {
            if (hoozit(callbacks[prop]) === "function") {
                return callbacks[prop].apply(callbacks, args);
            } else {
                return callbacks[prop]; // or undefined
            }
        }
    }

    var callbacks = function () {

        // for string, boolean, number and null
        function useStrictEquality(b, a) {
            if (b instanceof a.constructor || a instanceof b.constructor) {
                // to catch short annotaion VS 'new' annotation of a declaration
                // e.g. var i = 1;
                //      var j = new Number(1);
                return a == b;
            } else {
                return a === b;
            }
        }

        return {
            "string": useStrictEquality,
            "boolean": useStrictEquality,
            "number": useStrictEquality,
            "null": useStrictEquality,
            "undefined": useStrictEquality,

            "nan": function (b) {
                return isNaN(b);
            },

            "date": function (b, a) {
                return hoozit(b) === "date" && a.valueOf() === b.valueOf();
            },

            "regexp": function (b, a) {
                return hoozit(b) === "regexp" &&
                    a.source === b.source && // the regex itself
                    a.global === b.global && // and its modifers (gmi) ...
                    a.ignoreCase === b.ignoreCase &&
                    a.multiline === b.multiline;
            },

            // - skip when the property is a method of an instance (OOP)
            // - abort otherwise,
            //   initial === would have catch identical references anyway
            "function": function () {
                var caller = callers[callers.length - 1];
                return caller !== Object &&
                        typeof caller !== "undefined";
            },

            "array": function (b, a) {
                var i;
                var len;

                // b could be an object literal here
                if ( ! (hoozit(b) === "array")) {
                    return false;
                }

                len = a.length;
                if (len !== b.length) { // safe and faster
                    return false;
                }
                for (i = 0; i < len; i++) {
                    if ( ! innerEquiv(a[i], b[i])) {
                        return false;
                    }
                }
                return true;
            },

            "object": function (b, a) {
                var i;
                var eq = true; // unless we can proove it
                var aProperties = [], bProperties = []; // collection of strings

                // comparing constructors is more strict than using instanceof
                if ( a.constructor !== b.constructor) {
                    return false;
                }

                // stack constructor before traversing properties
                callers.push(a.constructor);

                for (i in a) { // be strict: don't ensures hasOwnProperty and go deep

                    aProperties.push(i); // collect a's properties

                    if ( ! innerEquiv(a[i], b[i])) {
                        eq = false;
                        break;
                    }
                }

                callers.pop(); // unstack, we are done

                for (i in b) {
                    bProperties.push(i); // collect b's properties
                }

                // Ensures identical properties name
                return eq && innerEquiv(aProperties.sort(), bProperties.sort());
            }
        };
    }();

    innerEquiv = function () { // can take multiple arguments
        var args = Array.prototype.slice.apply(arguments);
        if (args.length < 2) {
            return true; // end transition
        }

        return (function (a, b) {
            if (a === b) {
                return true; // catch the most you can
            } else if (a === null || b === null || typeof a === "undefined" || typeof b === "undefined" || hoozit(a) !== hoozit(b)) {
                return false; // don't lose time with error prone cases
            } else {
                return bindCallbacks(a, callbacks, [b, a]);
            }

        // apply transition with (1..n) arguments
        })(args[0], args[1]) && arguments.callee.apply(this, args.splice(1, args.length -1));
    };

    return innerEquiv;

}();

/**
 * jsDump
 * Copyright (c) 2008 Ariel Flesler - aflesler(at)gmail(dot)com | http://flesler.blogspot.com
 * Licensed under BSD (http://www.opensource.org/licenses/bsd-license.php)
 * Date: 5/15/2008
 * @projectDescription Advanced and extensible data dumping for Javascript.
 * @version 1.0.0
 * @author Ariel Flesler
 * @link {http://flesler.blogspot.com/2008/05/jsdump-pretty-dump-of-any-javascript.html}
 */
QUnit.jsDump = (function() {
  function quote( str ) {
    return '"' + str.toString().replace(/"/g, '\\"') + '"';
  };
  function literal( o ) {
    return o + '';
  };
  function join( pre, arr, post ) {
    var s = jsDump.separator(),
      base = jsDump.indent(),
      inner = jsDump.indent(1);
    if ( arr.join )
      arr = arr.join( ',' + s + inner );
    if ( !arr )
      return pre + post;
    return [ pre, inner + arr, base + post ].join(s);
  };
  function array( arr ) {
    var i = arr.length,  ret = Array(i);
    this.up();
    while ( i-- )
      ret[i] = this.parse( arr[i] );
    this.down();
    return join( '[', ret, ']' );
  };

  var reName = /^function (\w+)/;

  var jsDump = {
    parse:function( obj, type ) { //type is used mostly internally, you can fix a (custom)type in advance
      var  parser = this.parsers[ type || this.typeOf(obj) ];
      type = typeof parser;

      return type == 'function' ? parser.call( this, obj ) :
           type == 'string' ? parser :
           this.parsers.error;
    },
    typeOf:function( obj ) {
      var type;
      if ( obj === null ) {
        type = "null";
      } else if (typeof obj === "undefined") {
        type = "undefined";
      } else if (QUnit.is("RegExp", obj)) {
        type = "regexp";
      } else if (QUnit.is("Date", obj)) {
        type = "date";
      } else if (QUnit.is("Function", obj)) {
        type = "function";
      } else if (QUnit.is("Array", obj)) {
        type = "array";
      } else if (QUnit.is("Window", obj) || QUnit.is("global", obj)) {
        type = "window";
      } else if (QUnit.is("HTMLDocument", obj)) {
        type = "document";
      } else if (QUnit.is("HTMLCollection", obj) || QUnit.is("NodeList", obj)) {
        type = "nodelist";
      } else if (/^\[object HTML/.test(Object.prototype.toString.call( obj ))) {
        type = "node";
      } else {
        type = typeof obj;
      }
      return type;
    },
    separator:function() {
      return this.multiline ?  this.HTML ? '<br />' : '\n' : this.HTML ? '&nbsp;' : ' ';
    },
    indent:function( extra ) {// extra can be a number, shortcut for increasing-calling-decreasing
      if ( !this.multiline )
        return '';
      var chr = this.indentChar;
      if ( this.HTML )
        chr = chr.replace(/\t/g,'   ').replace(/ /g,'&nbsp;');
      return Array( this._depth_ + (extra||0) ).join(chr);
    },
    up:function( a ) {
      this._depth_ += a || 1;
    },
    down:function( a ) {
      this._depth_ -= a || 1;
    },
    setParser:function( name, parser ) {
      this.parsers[name] = parser;
    },
    // The next 3 are exposed so you can use them
    quote:quote,
    literal:literal,
    join:join,
    //
    _depth_: 1,
    // This is the list of parsers, to modify them, use jsDump.setParser
    parsers:{
      window: '[Window]',
      document: '[Document]',
      error:'[ERROR]', //when no parser is found, shouldn't happen
      unknown: '[Unknown]',
      'null':'null',
      undefined:'undefined',
      'function':function( fn ) {
        var ret = 'function',
          name = 'name' in fn ? fn.name : (reName.exec(fn)||[])[1];//functions never have name in IE
        if ( name )
          ret += ' ' + name;
        ret += '(';

        ret = [ ret, this.parse( fn, 'functionArgs' ), '){'].join('');
        return join( ret, this.parse(fn,'functionCode'), '}' );
      },
      array: array,
      nodelist: array,
      arguments: array,
      object:function( map ) {
        var ret = [ ];
        this.up();
        for ( var key in map )
          ret.push( this.parse(key,'key') + ': ' + this.parse(map[key]) );
        this.down();
        return join( '{', ret, '}' );
      },
      node:function( node ) {
        var open = this.HTML ? '&lt;' : '<',
          close = this.HTML ? '&gt;' : '>';

        var tag = node.nodeName.toLowerCase(),
          ret = open + tag;

        for ( var a in this.DOMAttrs ) {
          var val = node[this.DOMAttrs[a]];
          if ( val )
            ret += ' ' + a + '=' + this.parse( val, 'attribute' );
        }
        return ret + close + open + '/' + tag + close;
      },
      functionArgs:function( fn ) {//function calls it internally, it's the arguments part of the function
        var l = fn.length;
        if ( !l ) return '';

        var args = Array(l);
        while ( l-- )
          args[l] = String.fromCharCode(97+l);//97 is 'a'
        return ' ' + args.join(', ') + ' ';
      },
      key:quote, //object calls it internally, the key part of an item in a map
      functionCode:'[code]', //function calls it internally, it's the content of the function
      attribute:quote, //node calls it internally, it's an html attribute value
      string:quote,
      date:quote,
      regexp:literal, //regex
      number:literal,
      'boolean':literal
    },
    DOMAttrs:{//attributes to dump from nodes, name=>realName
      id:'id',
      name:'name',
      'class':'className'
    },
    HTML:true,//if true, entities are escaped ( <, >, \t, space and \n )
    indentChar:'   ',//indentation unit
    multiline:true //if true, items in a collection, are separated by a \n, else just a space.
  };

  return jsDump;
})();

})(this);
